Debt - Schedule of Debt (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Sep. 30, 2025 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Total debt | $ 2,745,200 | $ 2,743,700 |
| Less: Current portion of debt and short-term borrowings | (62,800) | (66,300) |
| Less: Unamortized debt issuance costs | (30,400) | (30,200) |
| Long-term debt | 2,651,988 | 2,647,220 |
| Amended Credit Agreement | ||
| Debt Instrument [Line Items] | ||
| Total debt | 1,448,800 | 1,439,900 |
| 2033 Senior Notes | ||
| Debt Instrument [Line Items] | ||
| Total debt | 1,200,000 | 1,200,000 |
| Other debt | ||
| Debt Instrument [Line Items] | ||
| Total debt | $ 96,400 | $ 103,800 |
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- Definition Amount of short-term and long-term debt and lease obligation. No definition available.
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- Definition Amount of debt and lease obligation, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of long-term debt and lease obligation, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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